Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Major Customer Concentration (Details Textual)

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Note 7 - Major Customer Concentration (Details Textual) - Accounts Receivable [Member] - Customer Concentration Risk [Member]
9 Months Ended 12 Months Ended
Jun. 30, 2018
Sep. 30, 2017
Customer C [Member]    
Concentration Risk, Percentage 15.00%  
Customer B [Member]    
Concentration Risk, Percentage 14.00% 19.00%
Customer A [Member]    
Concentration Risk, Percentage 12.00%